let-us-go / pyspark-pictures

Learn the pyspark API through pictures and simple examples

pyspark-pictures

Learn the pyspark API through pictures and simple examples

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• RDD API
• DataFrame API

RDD Example:

# flatMap
x = sc.parallelize([1,2,3])
y = x.flatMap(lambda x: (x, 100*x, x**2))
print(x.collect())
print(y.collect())

[1, 2, 3]
[1, 100, 1, 2, 200, 4, 3, 300, 9]

Install (for interactive use)

1. install Spark
2. install IPython notebook

Quick Start

1. start pyspark inside IPython notebook

   IPYTHON_OPTS="notebook" pyspark

2. open browser to notebook link

3. open pyspark-pictures.ipynb or pyspark-pictures-dataframes.ipynb

4. edit example code, press: ctrl + enter to run each cell

References

pyspark API

Contribute

Contributors are welcome
Original images are here, download to pdf, convert to svg with: genSVD (pdf2svg)